BBS Route · Colorado · BCR 16
Baxter Pass Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 116 species recorded across 21 survey years, still active.
116Species Recorded
21Years Surveyed
1994–2024Span
3Observers
Bird Species Found on Colorado Baxter Pass
Top 40 of 116 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Spotted Towhee | Passerellidae | 64 | 2024 | +81% | 1996 | |
| Green-tailed Towhee | Passerellidae | 39 | 2024 | +171% | 1996 | |
| Virginia's Warbler | Parulidae | 35 | 2024 | +840% | 1998 | |
| Lark Sparrow | Passerellidae | 34 | 2024 | +58% | 1996 | |
| American Robin | Turdidae | 34 | 2024 | +83% | 1996 | |
| Warbling Vireo | Vireonidae | 32 | 2024 | +41% | 1996 | |
| Brewer's Sparrow | Passerellidae | 28 | 2024 | +343% | 2015 | |
| Blue-gray Gnatcatcher | Polioptilidae | 27 | 2024 | +218% | 1996 | |
| Hermit Thrush | Turdidae | 25 | 2024 | +74% | 1996 | |
| Rock Wren | Troglodytidae | 24 | 2024 | +60% | 1998 | |
| Dusky Flycatcher | Tyrannidae | 24 | 2024 | +700% | 2013 | |
| Western Tanager | Cardinalidae | 23 | 2024 | +363% | 1996 | |
| Ash-throated Flycatcher | Tyrannidae | 23 | 2024 | +400% | 1997 | |
| Violet-green Swallow | Hirundinidae | 22 | 2024 | -41% | 1996 | |
| Pinyon Jay | Corvidae | 22 | 2024 | +209% | 2013 | |
| Lazuli Bunting | Cardinalidae | 18 | 2024 | -4% | 1996 | |
| Mountain Bluebird | Turdidae | 18 | 2024 | +106% | 1996 | |
| Black-billed Magpie | Corvidae | 17 | 2024 | +400% | 1996 | |
| Common Raven | Corvidae | 14 | 2024 | +429% | 1997 | |
| Red-winged Blackbird | Icteridae | 13 | 2024 | +238% | 1996 | |
| Orange-crowned Warbler | Parulidae | 13 | 2024 | +240% | 1996 | |
| Black-throated Gray Warbler | Parulidae | 12 | 2024 | +75% | 1996 | |
| Black-headed Grosbeak | Cardinalidae | 12 | 2024 | +267% | 1998 | |
| Northern House Wren | Troglodytidae | 12 | 2024 | +267% | 2002 | |
| Black-throated Sparrow | Passerellidae | 11 | 2024 | +250% | 2013 | |
| European Starling | Sturnidae | 10 | 2008 | n/a | n/a | |
| Brewer's Blackbird | Icteridae | 9 | 2024 | +92% | 1996 | |
| Plumbeous Vireo | Vireonidae | 9 | 2024 | +300% | 1998 | |
| Chipping Sparrow | Passerellidae | 8 | 2024 | +14% | 1996 | |
| Yellow Warbler | Parulidae | 7 | 2024 | +260% | 1997 | |
| MacGillivray's Warbler | Parulidae | 7 | 2024 | +280% | 1996 | |
| Chukar | Phasianidae | 7 | 2024 | +113% | 1998 | |
| Ruby-crowned Kinglet | Regulidae | 7 | 2024 | +125% | 2006 | |
| Common Grackle | Icteridae | 7 | 2013 | +600% | 2004 | |
| Cinnamon Teal | Anatidae | 6 | 2016 | +140% | 2003 | |
| Broad-tailed Hummingbird | Trochilidae | 6 | 2024 | +150% | 1996 | |
| Clark's Nutcracker | Corvidae | 6 | 2024 | -36% | 1998 | |
| Song Sparrow | Passerellidae | 5 | 2024 | +40% | 1996 | |
| Black-chinned Hummingbird | Trochilidae | 5 | 2016 | +300% | 2001 | |
| Blue Grosbeak | Cardinalidae | 5 | 2024 | +400% | 2000 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.